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       It reported that Russia's ministry of industry and trade plans to ban exports of nonferrous ore and concentrate, as well as precious metal scrap, from Russia from May 1 to October 31. Russian refiners are major consumers of precious metals and will have less than 30 percent of their production capacity in 2018, the draft order explained.

If the draft is implemented in Russia, it may further tighten the supply of tungsten ore in China, because imports of tungsten will be affected. China imported 3,429 tons of tungsten concentrate in 2018, up 68.76 percent year on year, accounting for 74.98 percent of total imports, according to the China tungsten industry association. China's tungsten concentrate imports mainly come from the DPRK, Vietnam, Rwanda and Russia. In 2018, China imported 2,916 tons of tungsten concentrate from these four countries, up 160.59% year-on-year, accounting for 85.04% of the total import, accounting for 29.97 percentage points more than in 2017.

According to the latest data from the United States geological survey, in 2019, the world's tungsten reserves are about 3.3 million tons, among which China ranks first with 1.9 million tons, and Russia ranks second with 240,000 tons. The U.S. geological survey in 2019 mining goods summary report, the Chinese government by limiting the number of mining and export license, and implements the mine production quotas and total volume control to regulate tungsten mining industry, 2016-2018, the Chinese mining and downstream secondary ammonium tungstate smelters to supply affected by the environmental protection check periodically to reduce. Production of tungsten concentrate outside China is expected to be lower in 2018 than in 2017, mainly because Vietnam is mining low-grade tungsten and Britain's only tungsten mine was closed in October.

The Hermerdon tungsten mine in the UK can only achieve half of its capacity after it started production in September 2015, and has been suspended since October 2018.

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